17(2-3y)-5(12-y)=8(1-7y)求y的值
问题描述:
17(2-3y)-5(12-y)=8(1-7y)求y的值
答
y=3.4
答
17(2-3y)-5(12-y)=8(1-7y)
34-51y-60+5y=8-56y
-51y+5y+56y=8-34+60
10y=34
y=34/10
y=3.4
答
17(2-3y)-5(12-y)=8(1-7y)
34-51y-60+5y=8-56y
-26-46y=8-56y
10y=34
y=3.4
答
17(2-3y)-5(12-y)=8(1-7y)
10y+34=0
y=-3.4